Meaning: to produce milk

Part of speech: verb

Example: Cows lactate to feed their calves.

Category: Science › Biology

Meaning: an acid produced in muscles during exercise

Part of speech: noun

Example: Lactic acid builds up during intense workouts.

Category: Science › Biochemistry

Meaning: a type of bacteria used in fermentation

Part of speech: noun

Example: Lactobacillus is found in yogurt.

Category: Science › Microbiology

Meaning: A unit of measurement for speed relative to the speed of sound.

Part of speech: noun

Example: The plane flew at Mach 2.

Category: Science › Physics

Synonyms: speed

Meaning: The whole universe or a large system.

Part of speech: noun

Example: The macrocosm of the universe is vast.

Category: Science › Cosmology

Synonyms: universe

Meaning: a prefix meaning one billionth

Part of speech: prefix

Example: A nanometer is one billionth of a meter.

Category: Science › Measurement

Meaning: a unit of length equal to one billionth of a meter

Part of speech: noun

Example: The wavelength of light is measured in nanometres.

Category: Science › Measurement

Meaning: one billionth of a second

Part of speech: noun

Example: The computer processes data in nanoseconds.

Category: Science › Time

Meaning: the science of manipulating matter on an atomic or molecular scale

Part of speech: noun

Example: Nanotechnology is used in medicine and electronics.

Category: Science › Technology

Meaning: able to be seen or noticed

Part of speech: adjective

Example: The changes in the environment are observable.

Category: Science › Observation

Synonyms:

• visible
• noticeable

Antonyms:

• invisible
• unnoticeable

Meaning: the amount of material in a given volume

Part of speech: noun

Example: The packing density of the boxes was high.

Category: Science › Physics

Synonyms: bulk density

Meaning: discrete quantities of energy or matter

Part of speech: noun

Example: Photons are considered quanta of light.

Category: Science › Physics

Meaning: to measure or express the quantity of something

Part of speech: verb

Example: It's difficult to quantify the impact of climate change.

Category: Science › Measurement

Synonyms: measure

Meaning: the smallest amount of a physical quantity

Part of speech: noun

Example: A quantum of energy can be absorbed by an electron.

Category: Science › Physics

Meaning: the branch of physics dealing with the behavior of matter and light on atomic and subatomic levels

Part of speech: noun

Example: Quantum mechanics explains the strange behavior of particles.

Category: Science › Physics

Meaning: the theoretical framework of quantum mechanics

Part of speech: noun

Example: Quantum theory has revolutionized our understanding of physics.

Category: Science › Physics

Meaning: a fundamental particle in physics

Part of speech: noun

Example: Quarks combine to form protons and neutrons.

Category: Science › Physics

Meaning: brightness or light emitted from a source

Part of speech: noun

Example: The radiance of the sun was blinding.

Category: Science › Physics

Synonyms: brightness

Meaning: to emit energy or light

Part of speech: verb

Example: The heater radiates warmth.

Category: Science › Physics

Synonyms: emit

Meaning: energy emitted in the form of waves or particles

Part of speech: noun

Example: Radiation can be harmful in large doses.

Category: Science › Physics

Synonyms: emission

Meaning: a prefix indicating something related to radio

Part of speech: prefix

Example: Radioactive materials are dangerous.

Category: Science

Meaning: the study of celestial objects using radio waves

Part of speech: noun

Example: Radio astronomy helps us understand the universe.

Category: Science › Astronomy

Meaning: a radioactive isotope of carbon used in dating

Part of speech: noun

Example: Radio carbon dating is used to determine the age of ancient artifacts.

Category: Science › Archaeology

Meaning: emitting radiation

Part of speech: adjective

Example: Radioactive waste must be handled carefully.

Category: Science › Physics

Synonyms: radiating

Meaning: arranged in a table format

Part of speech: adjective

Example: The data was presented in a tabular form.

Category: Science › Data Presentation

Synonyms: tabulated

Meaning: to arrange data in a table

Part of speech: verb

Example: We need to tabulate the results for clarity.

Category: Science › Data Presentation

Synonyms: organize

Meaning: related to the sense of touch

Part of speech: adjective

Example: Tactile feedback is important in user interface design.

Category: Science › Senses

Synonyms: touch-related

Meaning: an unidentified flying object

Part of speech: noun

Example: Many people believe UFOs are evidence of extraterrestrial life.

Category: Science › Astronomy

Synonyms: flying saucer

Meaning: the study of UFOs

Part of speech: noun

Example: Ufology is a popular subject among enthusiasts.

Category: Science › Astronomy

Meaning: having a frequency above the range of human hearing

Part of speech: adjective

Example: Ultrasonic waves are used in medical imaging.

Category: Science › Physics

Synonyms: high-frequency

Meaning: having a wavelength shorter than visible light

Part of speech: adjective

Example: Ultraviolet rays can cause sunburn.

Category: Science › Physics

Synonyms: UV

Meaning: the fully shaded inner region of a shadow

Part of speech: noun

Example: The umbra of the eclipse was visible from the city.

Category: Science › Physics

Synonyms: shadow

Meaning: a space within a cell that contains fluid

Part of speech: noun

Example: The plant cell has a large vacuole.

Category: Science › Biology

Meaning: a space entirely devoid of matter

Part of speech: noun

Example: In space, there is a vacuum.

Category: Science › Physics

Synonyms:

• void
• emptiness

Meaning: the combining capacity of an element

Part of speech: noun

Example: Oxygen has a valency of two.

Category: Science › Chemistry

Synonyms: valence

Meaning: to confirm or support the truth of something

Part of speech: verb

Example: You need to validate your findings with evidence.

Category: Science

Synonyms:

• confirm
• authenticate

Meaning: not influenced by personal beliefs or opinions

Part of speech: adjective

Example: The research aims to be value-free.

Category: Science › Research

Synonyms:

• objective
• neutral

Meaning: a chemical element used in steel production

Part of speech: noun

Example: Vanadium is important for making strong steel.

Category: Science › Chemistry

Meaning: one of the two sex chromosomes in humans

Part of speech: noun

Example: Females typically have two X chromosomes.

Category: Science › Genetics

Meaning: a colorless, dense gas used in lighting and photography

Part of speech: noun

Example: Xenon is often used in high-intensity lamps.

Category: Science › Chemistry